42222222241 has 2 divisors, whose sum is σ = 42222222242. Its totient is φ = 42222222240.

The previous prime is 42222222223. The next prime is 42222222281. The reversal of 42222222241 is 14222222224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37141383841 + 5080838400 = 192721^2 + 71280^2 .

It is a cyclic number.

It is not a de Polignac number, because 42222222241 - 2⁷ = 42222222113 is a prime.

It is not a weakly prime, because it can be changed into another prime (42222222281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111111120 + 21111111121.

It is an arithmetic number, because the mean of its divisors is an integer number (21111111121).

Almost surely, 2^42222222241 is an apocalyptic number.

It is an amenable number.

42222222241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42222222241 is an equidigital number, since it uses as much as digits as its factorization.

42222222241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4096, while the sum is 25.

Adding to 42222222241 its reverse (14222222224), we get a palindrome (56444444465).

The spelling of 42222222241 in words is "forty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred forty-one".